Guide book M has 71 fewer pages than Guide book N, and Guide book P has 27 more pages than Guide book N. If Guide book M and Guide book N have a total of 247 pages,
- how many pages does Guide book N have?
- how many pages does Guide book P have?
(a)
Number of pages that Guide book M has = 1 u
Number of pages that Guide book N has = 1 u + 71
Number of pages that Guide book P has = 1 u + 71 + 27
Total number of pages that Guide book M and Guide book N have
= 1 u + 1 u + 71
= 2 u + 71
2 u + 71 = 247
2 u = 247 - 71
2 u = 176
1 u = 176 ÷ 2 = 88
Number of pages that Guide book N has
= 1 u + 71
= 88 + 71
= 159
(b)
Number of pages that Guide book P has
= 1 u + 71 + 27
= 159 + 27
= 186
Answer(s): (a) 159; (b) 186
